# Extensions 1→N→G→Q→1 with N=C2 and Q=C22×D4

Direct product G=N×Q with N=C2 and Q=C22×D4
dρLabelID
D4×C2332D4xC2^364,261

Non-split extensions G=N.Q with N=C2 and Q=C22×D4
extensionφ:Q→Aut NdρLabelID
C2.1(C22×D4) = C22×C22⋊C4central extension (φ=1)32C2.1(C2^2xD4)64,193
C2.2(C22×D4) = C22×C4⋊C4central extension (φ=1)64C2.2(C2^2xD4)64,194
C2.3(C22×D4) = C2×C4×D4central extension (φ=1)32C2.3(C2^2xD4)64,196
C2.4(C22×D4) = C2×C22≀C2central stem extension (φ=1)16C2.4(C2^2xD4)64,202
C2.5(C22×D4) = C2×C4⋊D4central stem extension (φ=1)32C2.5(C2^2xD4)64,203
C2.6(C22×D4) = C2×C22⋊Q8central stem extension (φ=1)32C2.6(C2^2xD4)64,204
C2.7(C22×D4) = C2×C22.D4central stem extension (φ=1)32C2.7(C2^2xD4)64,205
C2.8(C22×D4) = C22.19C24central stem extension (φ=1)16C2.8(C2^2xD4)64,206
C2.9(C22×D4) = C2×C4.4D4central stem extension (φ=1)32C2.9(C2^2xD4)64,207
C2.10(C22×D4) = C2×C41D4central stem extension (φ=1)32C2.10(C2^2xD4)64,211
C2.11(C22×D4) = C2×C4⋊Q8central stem extension (φ=1)64C2.11(C2^2xD4)64,212
C2.12(C22×D4) = C22.26C24central stem extension (φ=1)32C2.12(C2^2xD4)64,213
C2.13(C22×D4) = C233D4central stem extension (φ=1)16C2.13(C2^2xD4)64,215
C2.14(C22×D4) = C22.29C24central stem extension (φ=1)16C2.14(C2^2xD4)64,216
C2.15(C22×D4) = C23.38C23central stem extension (φ=1)32C2.15(C2^2xD4)64,217
C2.16(C22×D4) = C22.31C24central stem extension (φ=1)32C2.16(C2^2xD4)64,218
C2.17(C22×D4) = D42central stem extension (φ=1)16C2.17(C2^2xD4)64,226
C2.18(C22×D4) = D45D4central stem extension (φ=1)16C2.18(C2^2xD4)64,227
C2.19(C22×D4) = D46D4central stem extension (φ=1)32C2.19(C2^2xD4)64,228
C2.20(C22×D4) = Q85D4central stem extension (φ=1)32C2.20(C2^2xD4)64,229
C2.21(C22×D4) = D4×Q8central stem extension (φ=1)32C2.21(C2^2xD4)64,230
C2.22(C22×D4) = Q86D4central stem extension (φ=1)32C2.22(C2^2xD4)64,231
C2.23(C22×D4) = C22×D8central stem extension (φ=1)32C2.23(C2^2xD4)64,250
C2.24(C22×D4) = C22×SD16central stem extension (φ=1)32C2.24(C2^2xD4)64,251
C2.25(C22×D4) = C22×Q16central stem extension (φ=1)64C2.25(C2^2xD4)64,252
C2.26(C22×D4) = C2×C4○D8central stem extension (φ=1)32C2.26(C2^2xD4)64,253
C2.27(C22×D4) = C2×C8⋊C22central stem extension (φ=1)16C2.27(C2^2xD4)64,254
C2.28(C22×D4) = C2×C8.C22central stem extension (φ=1)32C2.28(C2^2xD4)64,255
C2.29(C22×D4) = D8⋊C22central stem extension (φ=1)164C2.29(C2^2xD4)64,256
C2.30(C22×D4) = D4○D8central stem extension (φ=1)164+C2.30(C2^2xD4)64,257
C2.31(C22×D4) = D4○SD16central stem extension (φ=1)164C2.31(C2^2xD4)64,258
C2.32(C22×D4) = Q8○D8central stem extension (φ=1)324-C2.32(C2^2xD4)64,259

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